Recapitulare Finala

What’s the file extension used for text files containing Python code?

(a)  

Answer explanation

.py

You run a Python program and you receive the text from image in the console.

What does it mean?

• The error happened on line 9 of the program.

• A NameError occurred.

• The error happened on line 1 of the program.

• A Traceback error occurred.

• The line that generated the error was: print(Hello, world).

Answer explanation

A NameError occurred.

The error happened on line 1 of the program.

The line that generated the error was: print(Hello, world).

The specific error was: name 'Hello' is not defined.

When you see >>> inside IDLE, it means that:

• Your computer is having an existential crisis.

• Python is waiting for you to give it some instructions.

• An error has occurred.

• Python is upset.

Write the Python code that prints out the text Hello, world:

(a)  

The following Python statement has an error in it:

• Measurement Error

• Runtime Error

• Syntax Error

Answer explanation

There’s no quotation mark at the end of the string inside of print().

If you type the code into IDLE’s interactive window, you’ll get the following error:

In Python, variables are:

• Snippets of text that you can display on the screen.

• Numbers you can perform calculations on.

• Names that you can assign to different objects and use to reference those objects throughout your code.

Which operator symbol is used by Python to assign values to variables?

(a)  

Which of the following code examples will cause a runtime error when executed?

• 
• 
• 

Answer explanation

python is key sensitive.

Phrase is not phrase

Which of the following are VALID Python variable names? Select all that apply.

• really_big_number

• left_

• 3_d

• a2z

• sirLancelot

According to PEP 8 (convention), Python variable names should be written in which style?

• lowercase (Example: variablename)

• mixedCase (Example: variableName)

• lower_case_with_underscores (Example: variable_name)

• UPPERCASE (Example: VARIABLENAME)